Home / 18,791.22-25,862.84-16,108.50

Finding the Fourth Proportional to 18,791.22, 25,862.84 and 16,108.50

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Solution

The fourth proportional to 18,791.22, 25,862.84 and 16,108.50 is: 22,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.22 : 25,862.84 = 16,108.50 : x
  2. Step 2: Convert to fraction form
    18,791.22/25,862.84 = 16,108.50/x
  3. Step 3: Cross multiply
    18,791.22x = 25,862.84 × 16,108.50
  4. Step 4: Simplify right side
    18,791.22x = 416,611,558.14
  5. Step 5: Solve for x
    x = 416,611,558.14/18,791.22
  6. Step 6: Final answer
    x = 22,170.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.